Windows 10, version 1903 Download error - 0xc1900223

You can download the 1903 iso manually:

Heidoc iso downloader - just search for it.

When you have the iso, you have it for repeat attempts.

To use it, rt click the iso file, click Mount (if available)
Open the new drive letter created in file explorer
Double click setup.exe

See this link from MS : https://answers.microsoft.com/en-us/...0-f02582f1bc6a

leegold said:

But I want to just update my existing win10 with this update. How do I do that from and iso?

What dalchina posted before your question. Windows 10, version 1903 Download error - 0xc1900223

Good!

leegold said:

But I want to just update my existing win10 with this update. How do I do that from and iso?

Thank you very much for your reply.

I have told you.. just do that.. kindly state what you don't understand. These are the steps

a. download the iso file for your required build
b. use the iso file to upgrade your PC to that build.

Please confirm that is your objective or have I misunderstood something?

Note that there is no guarantee of success in any upgrade.

Your alternative is to fix your existing installation and then use Windows Update.

Many things can cause problems from disk corruption, damaged installation, partition problems, security software etc etc.